redis

package
v1.4.5 Latest Latest
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 Go to latest Published: May 9, 2024 License: Apache-2.0 Imports: 13 Imported by: 1

Documentation

Index

Constants

View Source 
const (
	// PackageName is the package name.
	PackageName = "go-redis"
	// LocalHost is the local host name.
	LocalHost = "localhost"
	// DefaultPort is the default port number.
	DefaultPort = 6379
	// DefaultScanCount is the default scan count.
	DefaultScanCount = 10
	// DefaultScanPattern is the default scan pattern.
	DefaultScanPattern = "*"
	// DefaultScanType is the default scan type.
	DefaultScanType = KeyScan
)
View Source 
const (
	ConfigSep = " "
)
View Source 
const (
	OK = "OK"
)
View Source 
const (
	Version = "v1.4.4"
)

Variables

View Source 
var (
	ErrNotSupported = errors.New("not supported")
	ErrQuit         = errors.New("QUIT")
	ErrSystem       = errors.New("internal system error")
	ErrNotAuthrized = errors.New("not authrized")
	ErrInvalid      = errors.New("invalid")
)

Functions

func NewErrNotSupported added in v1.4.0 

func NewErrNotSupported(target string) error

NewErrNotSupported returns a new ErrNotSupported.

Types

type Arguments added in v1.0.0 

type Arguments = *proto.Array

type AuthCommandHandler added in v1.4.0 

type AuthCommandHandler interface {
	Auth(conn *Conn, username string, password string) (*Message, error)
}

AuthCommandHandler represents a hander interface for authentication commands.

type Config added in v1.2.0 

type Config struct {
	// contains filtered or unexported fields
}

Config represents a server configuration.

func (*Config) AppendConfig added in v1.2.0 

func (cfg *Config) AppendConfig(key string, params string)

AppendConfig appends a specified parameter.

func (*Config) ConfigParameter added in v1.2.0 

func (cfg *Config) ConfigParameter(key string) (string, bool)

ConfigParameter return the specified parameter.

func (*Config) RemoveConfig added in v1.4.0 

func (cfg *Config) RemoveConfig(key string)

RemoveConfig removes the specified parameter.

func (*Config) SetConfig added in v1.2.0 

func (cfg *Config) SetConfig(key string, params string)

SetConfig sets a specified parameter.

type Conn added in v1.3.0 

type Conn struct {
	net.Conn

	sync.Map

	tracer.Context
	// contains filtered or unexported fields
}

Conn represents a database connection.

func (*Conn) Database added in v1.3.0 

func (conn *Conn) Database() DatabaseID

Database returns the current selected database number in the connection.

func (*Conn) IsAuthrized added in v1.4.0 

func (conn *Conn) IsAuthrized() bool

IsAuthrized returns true if the connection is authrized.

func (*Conn) SetAuthrized added in v1.4.0 

func (conn *Conn) SetAuthrized(authrized bool)

SetAuthrized sets the authrized flag to the connection.

func (*Conn) SetDatabase added in v1.3.0 

func (conn *Conn) SetDatabase(id DatabaseID)

SetDatabase sets the selected database number to the connection.

func (*Conn) SetSpanContext added in v1.3.5 

func (conn *Conn) SetSpanContext(span tracer.Context)

SetAuthrizedxt to the connection.

func (*Conn) SpanContext added in v1.3.5 

func (conn *Conn) SpanContext() tracer.Context

SpanContext returns the span context of the connection.

func (*Conn) Timestamp added in v1.3.0 

func (conn *Conn) Timestamp() time.Time

Timestamp returns the creation time of the connection.

type ConnectionManagementCommandHandler added in v1.2.0 

type ConnectionManagementCommandHandler interface {
	Ping(conn *Conn, arg string) (*Message, error)
	Echo(conn *Conn, arg string) (*Message, error)
	Select(conn *Conn, index int) (*Message, error)
	Quit(conn *Conn) (*Message, error)
}

ConnectionManagementCommandHandler represents a hander interface for connection management commands.

type DatabaseID added in v1.4.2 

type DatabaseID = int

DatabaseID is a database ID.

type Executor added in v1.0.0 

type Executor func(*Conn, string, Arguments) (*Message, error)

type Executors added in v1.0.0 

type Executors map[string]Executor

type ExpireOption added in v1.0.0 

type ExpireOption struct {
	Time time.Time
	NX   bool
	XX   bool
	GT   bool
	LT   bool
}

type GenericCommandHandler added in v1.0.0 

type GenericCommandHandler interface {
	Del(conn *Conn, keys []string) (*Message, error)
	Exists(conn *Conn, keys []string) (*Message, error)
	Expire(conn *Conn, key string, opt ExpireOption) (*Message, error)
	Keys(conn *Conn, pattern string) (*Message, error)
	Rename(conn *Conn, key string, newkey string, opt RenameOption) (*Message, error)
	Type(conn *Conn, key string) (*Message, error)
	TTL(conn *Conn, key string) (*Message, error)
	Scan(conn *Conn, cursor int, opt ScanOption) (*Message, error)
}

GenericCommandHandler represents a hander interface for genelic commands.

type HSetOption added in v1.0.0 

type HSetOption struct {
	NX bool
}

type HashCommandHandler added in v1.0.0 

type HashCommandHandler interface {
	// HDel represents a handler interface for HDEL command.
	HDel(conn *Conn, key string, fields []string) (*Message, error)
	// HSet represents a handler interface for HSET and HSETNX commands.
	HSet(conn *Conn, key string, field string, val string, opt HSetOption) (*Message, error)
	// HGet represents a handler interface for HGET command.
	HGet(conn *Conn, key string, field string) (*Message, error)
	// HGetAll represents a handler interface for HGETALL command.
	HGetAll(conn *Conn, key string) (*Message, error)
}

HashCommandHandler represents a core command hander interface for hash commands. HMSET and HMGET commands are implemented by the HashCommandHandler.

type ListCommandHandler added in v1.1.0 

type ListCommandHandler interface {
	LPush(conn *Conn, key string, elements []string, opt PushOption) (*Message, error)
	RPush(conn *Conn, key string, elements []string, opt PushOption) (*Message, error)
	LPop(conn *Conn, key string, count int) (*Message, error)
	RPop(conn *Conn, key string, count int) (*Message, error)
	LRange(conn *Conn, key string, start int, stop int) (*Message, error)
	LIndex(conn *Conn, key string, index int) (*Message, error)
	LLen(conn *Conn, key string) (*Message, error)
}

ListCommandHandler represents a core command hander interface for list commands.

type Message 

type Message = proto.Message

Message represents a message of Redis serialization protocol.

func NewArrayMessage added in v1.0.0 

func NewArrayMessage() *Message

NewArrayMessage creates an empty array message.

func NewArrayMessageWithArray added in v1.1.0 

func NewArrayMessageWithArray(val *proto.Array) *Message

NewArrayMessageWithArray creates an array message with the specified array.

func NewBulkMessage 

func NewBulkMessage(msg string) *Message

NewBulkMessage creates a bulk string message.

func NewErrorMessage 

func NewErrorMessage(err error) *Message

NewErrorMessage creates an error message.

func NewErrorNotSupportedMessage added in v1.4.0 

func NewErrorNotSupportedMessage(cmd string) *Message

NewErrorNotSupportedMessage returns a new ErrNotSupported message.

func NewFloatMessage added in v1.1.0 

func NewFloatMessage(val float64) *Message

NewFloatMessage creates an float message.

func NewIntegerMessage 

func NewIntegerMessage(val int) *Message

NewIntegerMessage creates an integer message.

func NewNilMessage 

func NewNilMessage() *Message

NewNilMessage creates a nil bulk string message.

func NewOKMessage 

func NewOKMessage() *Message

NewOKMessage creates a OK string message.

func NewStringArrayMessage added in v1.0.0 

func NewStringArrayMessage(strs []string) *Message

NewStringArrayMessage creates an array message with the specified strings.

func NewStringMessage 

func NewStringMessage(msg string) *Message

NewStringMessage creates a string message.

type PushOption added in v1.1.0 

type PushOption struct {
	X bool
}

type RenameOption added in v1.0.0 

type RenameOption struct {
	NX bool
}

type ScanOption added in v1.4.3 

type ScanOption struct {
	MatchPattern *glob.Glob
	Count        int
	Type         ScanType
}

type ScanType added in v1.4.3 

type ScanType int
const (
	KeyScan ScanType = iota
	SetScan
	HashScan
	SortedSetScan
)

type Server 

type Server struct {
	*ServerConfig
	tracer.Tracer
	Addr string
	// contains filtered or unexported fields
}

Server is an instance for Redis protocols.

func NewServer 

func NewServer() *Server

NewServer returns a new server instance.

func (*Server) Auth added in v1.4.0 

func (server *Server) Auth(conn *Conn, username string, password string) (*Message, error)

func (*Server) ConfigGet added in v1.2.0 

func (server *Server) ConfigGet(conn *Conn, keys []string) (*Message, error)

func (*Server) ConfigSet added in v1.2.0 

func (server *Server) ConfigSet(conn *Conn, params map[string]string) (*Message, error)

func (*Server) Echo 

func (server *Server) Echo(conn *Conn, arg string) (*Message, error)

func (*Server) Ping 

func (server *Server) Ping(conn *Conn, arg string) (*Message, error)

func (*Server) Quit 

func (server *Server) Quit(conn *Conn) (*Message, error)

func (*Server) RegisterExexutor added in v1.0.0 

func (server *Server) RegisterExexutor(cmd string, executor Executor)

RegisterExexutor sets a command executor.

func (*Server) Restart 

func (server *Server) Restart() error

Restart restarts the server.

func (*Server) Select 

func (server *Server) Select(conn *Conn, index int) (*Message, error)

func (*Server) SetAuthCommandHandler added in v1.4.0 

func (server *Server) SetAuthCommandHandler(handler AuthCommandHandler)

SetAuthCommandHandler sets a auth handler to handle auth commands.

func (*Server) SetCommandHandler 

func (server *Server) SetCommandHandler(handler UserCommandHandler)

SetCommandHandler sets a user handler to handle user commands.

func (*Server) SetTracer added in v1.3.2 

func (server *Server) SetTracer(t tracer.Tracer)

SetTracer sets a tracing tracer.

func (*Server) Start 

func (server *Server) Start() error

Start starts the server.

func (*Server) Stop 

func (server *Server) Stop() error

Stop stops the server.

type ServerConfig added in v1.4.0 

type ServerConfig struct {
	*Config
}

ServerConfig is a configuration for the Redis server.

func NewDefaultServerConfig added in v1.4.0 

func NewDefaultServerConfig() *ServerConfig

NewDefaultServerConfig returns a default server configuration.

func (*ServerConfig) ConfigPort added in v1.4.0 

func (cfg *ServerConfig) ConfigPort() int

ConfigPort returns a listen port number.

func (*ServerConfig) ConfigRequirePass added in v1.4.0 

func (cfg *ServerConfig) ConfigRequirePass() (bool, string)

ConfigRequirePass returns a password.

func (*ServerConfig) RemoveRequirePass added in v1.4.0 

func (cfg *ServerConfig) RemoveRequirePass()

RemoveRequirePass removes a password.

func (*ServerConfig) SetPort added in v1.4.0 

func (cfg *ServerConfig) SetPort(port int)

SetPort sets a listen port number.

func (*ServerConfig) SetRequirePass added in v1.4.0 

func (cfg *ServerConfig) SetRequirePass(password string)

SetRequirePass sets a password.

type ServerManagementCommandHandler added in v1.2.0 

type ServerManagementCommandHandler interface {
	ConfigSet(conn *Conn, params map[string]string) (*Message, error)
	ConfigGet(conn *Conn, keys []string) (*Message, error)
}

ServerManagementCommandHandler represents a hander interface for server management commands.

type SetCommandHandler added in v1.1.0 

type SetCommandHandler interface {
	SAdd(conn *Conn, key string, members []string) (*Message, error)
	SMembers(conn *Conn, key string) (*Message, error)
	SRem(conn *Conn, key string, members []string) (*Message, error)
}

SetCommandHandler represents a core command hander interface for set commands.

type SetOption 

type SetOption struct {
	EX      time.Duration
	PX      time.Duration
	EXAT    time.Time
	PXAT    time.Time
	NX      bool
	XX      bool
	KEEPTTL bool
	GET     bool
}

type StringCommandHandler added in v1.0.0 

type StringCommandHandler interface {
	// Set represents a handler interface for SET, SETNX, SETEX, PSETEX, MSET and MSETNX commands.
	Set(conn *Conn, key string, val string, opt SetOption) (*Message, error)
	// Get represents a handler interface for GET and MGET commands.
	Get(conn *Conn, key string) (*Message, error)
}

StringCommandHandler represents a core command hander interface for string commands. APPEND, DECR, DECRBY, GETRANGE, GETSET, INCR, INCRBY, MGET, MSET, MSETNX, SETRANGE, STRLEN commands are implemented by the StringCommandHandler.

type SystemCommandHandler 

type SystemCommandHandler interface {
	ConnectionManagementCommandHandler
	ServerManagementCommandHandler
}

SystemCommandHandler represents a hander interface for system commands.

type UserCommandHandler added in v1.1.0 

type UserCommandHandler interface {
	GenericCommandHandler
	StringCommandHandler
	HashCommandHandler
	ListCommandHandler
	SetCommandHandler
	ZSetCommandHandler
}

UserCommandHandler represents a command hander interface for user commands.

type ZAddOption added in v1.1.0 

type ZAddOption struct {
	XX   bool
	NX   bool
	LT   bool
	GT   bool
	CH   bool
	INCR bool
}

type ZRangeOption added in v1.1.0 

type ZRangeOption struct {
	BYSCORE      bool
	BYLEX        bool
	REV          bool
	WITHSCORES   bool
	MINEXCLUSIVE bool
	MAXEXCLUSIVE bool
	Offset       int
	Count        int
}

type ZSetCommandHandler added in v1.1.0 

type ZSetCommandHandler interface {
	ZAdd(conn *Conn, key string, members []*ZSetMember, opt ZAddOption) (*Message, error)
	ZRange(conn *Conn, key string, start int, stop int, opt ZRangeOption) (*Message, error)
	ZRangeByScore(conn *Conn, key string, min float64, max float64, opt ZRangeOption) (*Message, error)
	ZRem(conn *Conn, key string, members []string) (*Message, error)
	ZScore(conn *Conn, key string, member string) (*Message, error)
	ZIncBy(conn *Conn, key string, inc float64, member string) (*Message, error)
}

ZSetCommandHandler represents a core command hander interface for zset commands.

type ZSetMember added in v1.1.0 

type ZSetMember struct {
	Score  float64
	Member string
}

ZSetMember represents a parameter for ZSetCommandHandler.

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